--- files/patch-sysdeps_freebsd_procmap.c	(revision 520143)
+++ files/patch-sysdeps_freebsd_procmap.c	(working copy)
@@ -1,5 +1,5 @@ 
---- sysdeps/freebsd/procmap.c.orig	2015-08-17 18:59:37 UTC
-+++ sysdeps/freebsd/procmap.c
+--- sysdeps/freebsd/procmap.c.orig	2017-08-07 18:43:41.000000000 -0400
++++ sysdeps/freebsd/procmap.c	2019-12-10 09:04:59.238100000 -0500
 @@ -52,6 +52,8 @@
  #include <sys/mount.h>
  #include <ufs/ufs/quota.h>
@@ -9,7 +9,7 @@ 
  #include <fs/devfs/devfs.h>
  #if (__FreeBSD_version >= 600006) || defined(__FreeBSD_kernel__)
  #include <fs/devfs/devfs_int.h>
-@@ -86,6 +88,8 @@ _glibtop_sysdeps_freebsd_dev_inode (glib
+@@ -95,6 +97,8 @@
          struct cdev_priv priv;
  #if __FreeBSD_version < 800039
          struct cdev si;
@@ -18,9 +18,9 @@ 
  #endif
  
          *inum = 0;
-@@ -167,7 +171,9 @@ _glibtop_sysdeps_freebsd_dev_inode (glib
+@@ -202,7 +206,9 @@
  
- 
+ #else /* older versions */
  #if (__FreeBSD_version >= 800039) || (__FreeBSD_kernel_version >= 800039)
 -        if (kvm_read (server->machine->kd, (gulong) cdev2priv(inode.i_dev), (char *) &priv,
 +        if (kvm_read (server->machine->kd, (gulong) inode.i_ump, (char *) &um,
@@ -29,3 +29,34 @@ 
  		      sizeof (priv))
  #else
          if (kvm_read (server->machine->kd, (gulong) inode.i_dev, (char *) &si,
+@@ -273,10 +279,10 @@
+                 return NULL;
+         }
+ 
+-        first = vmspace.vm_map.header.next;
++        first = vmspace.vm_map.header.right;
+ 
+         if (kvm_read (server->machine->kd,
+-                        (gulong) vmspace.vm_map.header.next,
++                        (gulong) vmspace.vm_map.header.right,
+                         (char *) &entry, sizeof (entry)) != sizeof (entry)) {
+                 glibtop_warn_io_r (server, "kvm_read (entry)");
+ 		glibtop_suid_leave (server);
+@@ -299,7 +305,7 @@
+ 
+                 if (update) {
+                         if (kvm_read (server->machine->kd,
+-                                        (gulong) entry.next,
++                                        (gulong) entry.right,
+                                         (char *) &entry, sizeof (entry)) != sizeof (entry)) {
+                                 glibtop_warn_io_r (server, "kvm_read (entry)");
+                                 continue;
+@@ -377,7 +383,7 @@
+                 if (entry.protection & VM_PROT_EXECUTE)
+                         mentry->perm |= GLIBTOP_MAP_PERM_EXECUTE;
+ 
+-        } while (entry.next != first);
++        } while (entry.right != first);
+ 
+         glibtop_suid_leave (server);
+